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�������պ����ѧѧ�� 2011, Vol. 37 Issue (1) :72-75    DOI:
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Simulation and analysis of brushless DC motor double closed-loop control strategy
Huang Zhi, Guo Hong, Wang Dayu, Xu Jinquan*
School of Automation Science and Electrical Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

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Abstract�� Load disturbance exists in direct drive valve(DDV) servo system. Meanwhile conventional triplex closed-loop control structure cannot satisfy DDV servo system in rapidity. Therefore double closed-loop control structure was adopted. Position and velocity double closed-loop system was compared with position and current double closed-loop system. The optimal proportion integral coefficients could be obtained through the method of frequency domain analysis. The simulation results show that double closed-loop control systems perform well in static and dynamic operation. Meanwhile the influence of load disturbance can be reduced effectively. When the system has a small damping coefficient, position and velocity double closed-loop system performs better in load adaptability. Position and current double closed-loop system performs better in rapidity. The comparison between the simulation results and theoretical analysis shows a good agreement.
Keywords�� brushless DC motor   direct drive valve(DDV)   double closed-loop control     
Received 2009-11-23;
Fund:

���տ�ѧ����������Ŀ(2007ZC51039)

About author: �� ��(1988-),��,����������,˶ʿ��,hzbuaa@163.com.
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����, ����, ����, ���ȫ.��ˢֱ�����ص綯��˫�ջ����Ʋ��Է������[J]  �������պ����ѧѧ��, 2011,V37(1): 72-75
Huang Zhi, Guo Hong, Wang Dayu, Xu Jinquan.Simulation and analysis of brushless DC motor double closed-loop control strategy[J]  JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2011,V37(1): 72-75
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